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(a) cardiac sphincter
(b) bile
- emulsifies fats
-neutralizes the acidic chyme
- provides alkaline medium for enzymatic action
(c) highly coiled to reduce speed of food movement for maximum digestion/absorption
- has numerous villi and micro-villi for maximum absorption of food
- highly vascularized to create a steep diffusion gradient for transportation of food
- it is long to create a large surface area for digestion/absorption of food
- has goblet cells that secrete mucus; that prevents digestion of the walls by digestive enzymes
- has thin epithelium for faster diffusion of digested food products;
maurice.mutuku answered the question on November 7, 2019 at 05:57
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Date posted: October 30, 2019. Answers (1)
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Date posted: October 30, 2019. Answers (1)
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Identity
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Date posted: October 9, 2019. Answers (1)
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Date posted: October 9, 2019. Answers (1)
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Date posted: October 9, 2019. Answers (1)
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Date posted: October 9, 2019. Answers (1)
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Date posted: October 9, 2019. Answers (1)
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Date posted: October 9, 2019. Answers (1)
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a)plot a graph of rate of transpiration against width of the stomata.
(b) Use your graph to predict the rate of transpiration when the stomata have a width of 8nm.
(c) Describe the relationship between the width of stomata and the rate of transpiration in still air.
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Date posted: October 9, 2019. Answers (1)
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(a) Name the structures A and B .
A
B
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(ii) Explain other methods by which the skin helps to keep the body warm.
Date posted: October 9, 2019. Answers (1)